christie, a romney ally. president obama may sit wisconsin tomorrow. of course, we invite you to stay with nbc bay area news for continuing coverage of the storm sandy. you can always go to nbcbayarea.com for the latest updates. >>> still ahead here at 6:00, the new invention that could prevent some surprising injuries in hospitals. >>> also -- >> i'm scott budman. a new smartphone and new smartphone apps. coming up, the windows version of the smartphone and how it plans to take on the iphone. >>> in health matters, smoke-free lives led to a dramatic decrease in heart attacks and death. researchers tracked a county in minnesota after their indoor smoking bans went into effect. in five years, the rate of heart attack deaths dropped by 5%. during the same five-year period, the state increased tobacco taxes and anti-tobacco campaigns. uc san francisco center for tobacco control research and education says the next efforts should focus on banning smoking in apartment buildings, cars and outdoor locations. >> wond